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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/15890
Title: | Characterization of backcross introgression lines derived from Oryza nivara accessions for photosynthesis and yield |
Other Titles: | Not Available |
Authors: | Yadavalli Venkateswara Rao Sukumar Mesapogu Sarla Neelamraju, Divya Balakrishnan Thuraga Vishnu Kiran Sitapathi Rao Voleti, Krishnam Raju Addanki Desiraju Subrahmanyam |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR- National Professor Project, ICAR- Indian Institute of Rice Research, Hyderabad, India Plant Physiology Section, Department of Crop Physiology, ICAR- Indian Institute of Rice Research, Hyderabad, India |
Published/ Complete Date: | 2018-07-13 |
Project Code: | Not Available |
Keywords: | BILs, Oryza nivara, Photosynthesis, Seasonal variation, Yield |
Publisher: | Springer |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Improvement of photosynthetic traits is a promising strategy to break the yield potential barrier of major food crops. Leaf photosynthetic traits were evaluated in a set of high yielding Oryza sativa, cv. Swarna 9 Oryza nivara backcross introgression lines (BILs) along with recurrent parent Swarna, both in wet (Kharif) and dry(Rabi) seasons in normal irrigated field conditions. Net photosynthesis (PN) ranged from 15.37 to 23.25 µmol(CO2) m-2 s-1 in the BILs. Significant difference in PN was observed across the seasons and genotypes. Six BILs showed high photosynthesis compared with recurrent parent in both seasons. Chlorophyll content showed minimum variation across the seasons for any specific BIL but significant variation was observed among BILs. Significant positive association between photosynthetic traits and yieldtraits was observed, but this association was not consistent across seasons mainly due to contrasting weather parameters in both seasons. BILs 166s and 248s with high and consistent photosynthetic rate exhibited stable high yield levels in both the seasons compared to the recurrent parent Swarna. There is scope to exploit photosynthetic efficiency of wild and weedy rice to identify genes for improvement of photosynthetic rate in cultivars. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Journal |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Physiology and Molecular Biology of Plants |
Volume No.: | Not Available |
Page Number: | 1-20 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/15890 |
Appears in Collections: | CS-IIRR-Publication |
Files in This Item:
File | Description | Size | Format | |
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2018 O.nivara Pl physiol Mol Biol plants .pdf | 1.36 MB | Adobe PDF | View/Open |
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